International Scholarly Research Notices

Research Article

Concurrent Associations between Physical Activity, Screen Time, and Sleep Duration with Childhood Obesity

Table 3

Correlations between body mass index percentile and behavioral risk factors.
VariablesGirls ( )
BMI percentilePhysical activitySleep durationScreen timeCombined z-score
Boys ( )     
 BMI percentile1−0.22*−0.100.10−0.23*
 Pedometer steps−0.111−0.13*−0.040.51*
 Sleep duration−0.18*−0.14*1−0.20*0.60*
 Screen time 0.12*−0.06−0.19*1−0.68*
 Combined -Score−0.23*0.51*0.58*−0.70*1
 *Statistically significant ( ).
Correlations adjusted for age, height, leg length, and ethnicity.
Combined z-score = sum of age and gender specific -scores from pedometer steps, sleep, and (inverse of) screen time.